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The stone spheres of Costa Rica are a collection of over three hundred petrospheres in the Diquis Delta and on Isla del Caño of Costa Rica. Known locally as Las Bolas, they are also called The Diquis Spheres and stone balls of Costa Rica. These are the best-known stone sculptures of the Isthmo-Colombian area.

The stone spheres of Costa Rica are a collection of over three hundred petrospheres in the Diquis Delta and on Isla del Caño of Costa Rica. Known locally as Las Bolas, they are also called The Diquis Spheres and stone balls of Costa Rica. These are the best-known stone sculptures of the Isthmo-Colombian area.